{% macro menu_icon(item) -%}
  {% set icon_type = item.get_icon_type() %}
  {%- if icon_type %}
    {% set icon_value = item.get_icon_value() %}
    {% if icon_type == 'glyph' %}
      <i class="glyphicon {{ icon_value }}"></i>
    {% elif icon_type == 'fa' %}
      <i class="fa {{ icon_value }}"></i>
    {% elif icon_type == 'image' %}
      <img src="{{ url_for('static', filename=icon_value) }}" alt="menu image">
    {% elif icon_type == 'image-url' %}
      <img src="{{ icon_value }}" alt="menu image">
    {% endif %}
  {% endif %}
{%- endmacro %}

{% macro menu(menu_root=None) %}
  {% set is_main_nav = menu_root == None %}
  {% if menu_root is none %}{% set menu_root = admin_view.admin.menu() %}{% endif %}
  {%- for item in menu_root %}
    {%- if item.is_category() -%}
      {% set children = item.get_children() %}
      {%- if children %}
        {% set class_name = item.get_class_name() or '' %}

        <!-- just enhance the readability -->
        <li class="{% if item.is_active(admin_view) %}active {% endif %}dropdown">

          <a class="dropdown-toggle {% if is_main_nav %}nav-link{% else %}dropdown-item{% endif %}" data-toggle="dropdown" href="javascript:void(0)">
            <!-- show icon -->
            {% if item.class_name %}<span class="{{ item.class_name }}"></span> {% endif %}
            {{ menu_icon(item) }}{{ item.name }}
            {%- if 'dropdown-submenu' in class_name -%}
              <i class="glyphicon glyphicon-chevron-right small"></i>
            {%- else -%}
              <i class="glyphicon glyphicon-chevron-down small"></i>
            {%- endif -%}
          </a>
          <ul class="dropdown-menu">
            {%- for child in children -%}
              {%- if child.is_category() -%}
                {{ menu(menu_root=[child]) }}
              {% else %}
                {% set class_name = child.get_class_name() %}
                {% if 'dropdown-divider' in class_name %}
                  <li class="{{ class_name }}"></li>
                {% else %}
                  <li>
                    {%- if child.is_active(admin_view) %}
                      <a class="dropdown-item active {{ class_name }} " href="{{ child.get_url() }}"{% if child.target %}
                      target="{{ child.target }}"{% endif %}>
                        {{ menu_icon(child) }}{{ child.name }}</a>
                    {% else %}
                      <a class="dropdown-item {{ class_name }}" href="{{ child.get_url() }}"{% if child.target %}
                      target="{{ child.target }}"{% endif %}>
                        {{ menu_icon(child) }}{{ child.name }}</a>
                    {%- endif %}
                  </li>
                {%- endif %}
              {%- endif %}
            {%- endfor %}
          </ul>
        </li>
      {% endif %}
    {%- else %}
      {%- if item.is_accessible() and item.is_visible() -%}
        {% set class_name = item.get_class_name() %}
        {%- if item.is_active(admin_view) %}
          <li class="active">
            {%- else %}
          <li>
        {%- endif %}
      <a class="nav-link {{ class_name }}" href="{{ item.get_url() }}"{% if item.target %} target="{{ item.target }}"{% endif %}>
        {{ menu_icon(item) }}{{ item.name }}</a>
      </li>
      {%- endif -%}
    {% endif -%}
  {% endfor %}
{% endmacro %}

{% macro menu_links(links=None) %}
  {% if links is none %}{% set links = admin_view.admin.menu_links() %}{% endif %}
  {% for item in links %}
    {% set class_name = item.get_class_name() %}
    {% if item.is_accessible() and item.is_visible() %}
      <li>
        <a class="nav-link {{ class_name }}" href="{{ item.get_url() }}"{% if item.target %} target="{{ item.target }}"{% endif %}>
          {{ menu_icon(item) }}{{ item.name }}</a>
      </li>
    {% endif %}
  {% endfor %}
{% endmacro %}

{% macro messages() %}
  {% with messages = get_flashed_messages(with_categories=True) %}
    {% if messages %}
      {% for category, m in messages %}
        {% if category %}
          {# alert-error changed to alert-danger in bootstrap 3, mapping is for backwards compatibility #}
          {% set mapping = {'message': 'info', 'error': 'danger'} %}
          <div class="alert alert-{{ mapping.get(category, category) }} alert-dismissable">
        {% else %}
          <div class="alert alert-dismissable">
        {% endif %}
      <button type="button" class="close" data-dismiss="alert" aria-hidden="true">&times;</button>
      {{ m }}
      </div>
      {% endfor %}
    {% endif %}
  {% endwith %}
{% endmacro %}
